title: Cyclosporin A blocks receptors for HLA-DR antigens on T cells.
mesh_terms: D003524:Cyclosporins; D005656:Fungal Proteins / Q000494:pharmacology; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II / Q000378:metabolism*; D006801:Humans; D007108:Immune Tolerance / Q000187:drug effects*; D007166:Immunosuppressive Agents / Q000494:pharmacology; D007375:Interleukin-1; D008213:Lymphocyte Activation / Q000187:drug effects; D010456:Peptides, Cyclic / Q000494:pharmacology*; D011506:Proteins / Q000037:antagonists & inhibitors; D011948:Receptors, Antigen, T-Cell / Q000187:drug effects*; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D003524:Cyclosporins; D005656:Fungal Proteins; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II; D007166:Immunosuppressive Agents; D007375:Interleukin-1; D010456:Peptides, Cyclic; D011506:Proteins; D011948:Receptors, Antigen, T-Cell